Institution: | (1) Department of Embryology, Institute for Developmental Research, Aichi Prefectural Colony, 480-03 Kasugai, Aichi, (Japan);(2) Biological Institute, Faculty of Science, Nagoya University, 464 Nagoya, (Japan);(3) Present address: Biological Institute, Faculty of Science, Shinshu University, 390 Matsumoto, Japan |